What's the source of bright yellow on the worker bees backsm

[sjt]

All our hives had worker bees with bright yellow on their backs, mainly the thorax. Looks like someone gone mad with a queen marking pen. Any ideas what plant the pollen could be from?
We're in Sussex between the sea and the downs, not near any streams or rivers.

 

[Millet]

Go for a little walk and try to find out for yourself..it could be anything at the moment and folk will be saying it is this and that...but you will never know unless you see the bees working a particular forage with your own eye balls...That is Unless you are good with a microscope to analyze pollen grains.

 

[Beefriendly]

Spot on.

 

[iann41]

probably Hawksbeard. loads just now as its dry.

 

[Cuckmere couple]

im in the Downs too just above the cuckmere...

we have loads of HB coming in from the riverside at the moment and i posted some pictures in the HB thread...

 

[sjt]

No HB within flight range so sure it's not that and also it's a really bright yellow colour

 

[Erichalfbee]

Any cucurbits?
Squash
Courgettes
My bees are into the courgette flowers and they come out plastered in pollen

 

[Finman]

.
Linaria vulgaris, toadflax, but I wonder where my answer has gone

 

[Swarm]

.
Linaria vulgaris, toadflax, but I wonder where my answer has gone

It leaves a stamp on the bees.